alexa Chenopodium album seed extract-induced sperm cell death: exploration of a plausible pathway.
Reproductive Medicine

Reproductive Medicine

Journal of Fertilization: In Vitro - IVF-Worldwide, Reproductive Medicine, Genetics & Stem Cell Biology

Author(s): Kumar S, Chatterjee R, Dolai S, Adak S, Kabir SN,

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Abstract BACKGROUND: This study was conducted for to explore the plausible pathway of Chenopodium album seed extract (CAE)-mediated sperm cell death. STUDY DESIGN: The role of CAE for its spermicidal action was assessed by (a) measuring lipid peroxidation, protein carbonyl content and intracellular glutathione content in CAE exposed sperm cells; (b) assaying antioxidant enzymes like catalase and superoxide dismutase (SOD); (c) analyzing protein expressions by using sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blot analysis; (d) fluorimetric measurement of intracellular H(2)O(2) level and generation of reactive oxygen species (ROS) in CAE-treated sperm cells; and (e) DNA ladder formation study. RESULTS: CAE-induced sperm death is due to (a) lipid peroxidation of the sperm cell membrane, oxidation of some critical cellular proteins and depletion of intracellular reduced gluthathione, indicating production of ROS; (b) activation of Mn-SOD and inactivation of catalase favoring endogenous accumulation of H(2)O(2); (c) generation of O(2)(*-) at an enhanced rate during oxidative stress as evidenced by increased Mn-SOD activity and protein expression; (d) accumulation of ROS in spermatozoa reflected in the fluorimetric experiments; and (e) increased production of O(2)(*-) and H(2)O(2) induced apoptosis-like death in sperm cells as observed by DNA ladder formation. CONCLUSION: The sperm death mediated by CAE is due to oxidative damage of cellular macromolecules by in situ generation of ROS. This article was published in Contraception and referenced in Journal of Fertilization: In Vitro - IVF-Worldwide, Reproductive Medicine, Genetics & Stem Cell Biology

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